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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
23/06/2017 |
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Data da última atualização: |
29/06/2017 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
SOARES, D. J.; DATOVO, C. de O. |
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Afiliação: |
DARTANHA JOSE SOARES, CNPA; C. de O. DATOVO, Bolsista PIBIC/CNPq - PUCCAMP. |
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Título: |
Baseline sensitivity of Amphobotrys ricini to fluazinam and thiophanate-methyl. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE MICOLOGIA, 8., 2016, Florianópolis. Anais... Florianópolis: Sociedade Brasileira de Micologia (SBMy), 2016. |
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Páginas: |
p. 234. |
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Idioma: |
Inglês |
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Conteúdo: |
Amphobotrys ricini is the causal agent of castor gray mold, one of the most destructive diseases of castor crops. Fungicides are frequently used to manage plant diseases, however no information on the baseline sensitivity of A. ricini to fungicides is available. The aim of the present work was to determine the baseline sensitivity of A. ricini to the fungicides fluazinam and thiophanate-methyl based on 47 isolates from Goias (n=3), Maranhão (n=1), Mato Grosso (n=12), Paraíba (n=3), Rio Grande do Sul (n=18) and São Paulo states (n=10). Mycelial disc (6 mm) removed from 4-day-old colonies were transferred to Petri dishes containing Potato-Dextrose-Agar (PDA) amended with the fungicides in different concentrations. The Petri dishes were then maintained in the dark for 4 days at 25 ± 1 ºC. The evaluation consisted of two perpendicular measurements of the radial fungus growth, which were used to calculate the percentage of mycelial growth inhibition for each treatment (isolate×fungicide×concentration) related to the control. The data of the percentage of mycelial growth inhibition were used to obtain the effective concentration to inhibit 50 % of the fungus mycelial growth (EC50) by means of linear regression. The mean EC50 for fluazinam was 0.1654 ± 0.0879 ?g mL-1 and for thiophanatemethyl 0.3591 ± 0.0903 ?g mL-1. Based on the mean EC50 obtained in the present work, it was possible to conclude that both fungicides have high intrinsic toxicity to A. ricini and they could be an alternative to manage the disease once their efficiency have been corroborated under field condition. MenosAmphobotrys ricini is the causal agent of castor gray mold, one of the most destructive diseases of castor crops. Fungicides are frequently used to manage plant diseases, however no information on the baseline sensitivity of A. ricini to fungicides is available. The aim of the present work was to determine the baseline sensitivity of A. ricini to the fungicides fluazinam and thiophanate-methyl based on 47 isolates from Goias (n=3), Maranhão (n=1), Mato Grosso (n=12), Paraíba (n=3), Rio Grande do Sul (n=18) and São Paulo states (n=10). Mycelial disc (6 mm) removed from 4-day-old colonies were transferred to Petri dishes containing Potato-Dextrose-Agar (PDA) amended with the fungicides in different concentrations. The Petri dishes were then maintained in the dark for 4 days at 25 ± 1 ºC. The evaluation consisted of two perpendicular measurements of the radial fungus growth, which were used to calculate the percentage of mycelial growth inhibition for each treatment (isolate×fungicide×concentration) related to the control. The data of the percentage of mycelial growth inhibition were used to obtain the effective concentration to inhibit 50 % of the fungus mycelial growth (EC50) by means of linear regression. The mean EC50 for fluazinam was 0.1654 ± 0.0879 ?g mL-1 and for thiophanatemethyl 0.3591 ± 0.0903 ?g mL-1. Based on the mean EC50 obtained in the present work, it was possible to conclude that both fungicides have high intrinsic toxicity to A. ricini and they could be an al... Mostrar Tudo |
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Thesaurus Nal: |
Thiophanate-methyl. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/161030/1/2016RA-089.pdf
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Marc: |
LEADER 02140nam a2200145 a 4500
001 2071453
005 2017-06-29
008 2016 bl uuuu u00u1 u #d
100 1 $aSOARES, D. J.
245 $aBaseline sensitivity of Amphobotrys ricini to fluazinam and thiophanate-methyl.$h[electronic resource]
260 $aIn: CONGRESSO BRASILEIRO DE MICOLOGIA, 8., 2016, Florianópolis. Anais... Florianópolis: Sociedade Brasileira de Micologia (SBMy)$c2016
300 $ap. 234.
520 $aAmphobotrys ricini is the causal agent of castor gray mold, one of the most destructive diseases of castor crops. Fungicides are frequently used to manage plant diseases, however no information on the baseline sensitivity of A. ricini to fungicides is available. The aim of the present work was to determine the baseline sensitivity of A. ricini to the fungicides fluazinam and thiophanate-methyl based on 47 isolates from Goias (n=3), Maranhão (n=1), Mato Grosso (n=12), Paraíba (n=3), Rio Grande do Sul (n=18) and São Paulo states (n=10). Mycelial disc (6 mm) removed from 4-day-old colonies were transferred to Petri dishes containing Potato-Dextrose-Agar (PDA) amended with the fungicides in different concentrations. The Petri dishes were then maintained in the dark for 4 days at 25 ± 1 ºC. The evaluation consisted of two perpendicular measurements of the radial fungus growth, which were used to calculate the percentage of mycelial growth inhibition for each treatment (isolate×fungicide×concentration) related to the control. The data of the percentage of mycelial growth inhibition were used to obtain the effective concentration to inhibit 50 % of the fungus mycelial growth (EC50) by means of linear regression. The mean EC50 for fluazinam was 0.1654 ± 0.0879 ?g mL-1 and for thiophanatemethyl 0.3591 ± 0.0903 ?g mL-1. Based on the mean EC50 obtained in the present work, it was possible to conclude that both fungicides have high intrinsic toxicity to A. ricini and they could be an alternative to manage the disease once their efficiency have been corroborated under field condition.
650 $aThiophanate-methyl
700 1 $aDATOVO, C. de O.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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| 4. |  | AUER, C. G.; GRIGOLETTI JUNIOR, A.; SANTOS, A. F. dos. A sanidade das florestas plantadas da região sul do Brasil e sua sustentabilidade. SBPN - Scientific Journal, Curitiba, v. 4, supl. 1, p. 77-78, 2000. Edição dos Anais da 8ª Reunião Anual da Sociedade Brasileira de Pesquisadores Nikkeis, Curitiba, 2000. Resumos..| Biblioteca(s): Embrapa Florestas. |
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| 7. | | KUCZKOWSKI, F. R.; CHIME, M. A.; AUER, C. G.; GRIGOLETTI JUNIOR, A.; GABARDO, J.; PIMENTEL, I. C. Assesment of endophytic fungi from leaves of native and cultivated Ilex paraguariensis plants. In: CONGRESSO BRASILEIRO DE MICROBIOLOGIA, 22., Florianópolis, 2003. [S.l.]: Sociedade Brasileira de Microbiologia, 2003.| Biblioteca(s): Embrapa Florestas. |
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| 12. | | DIAS, J. F. G.; VIRTUOSO, S.; DAVET, A.; CUNICO, M. M.; MIGUEL, M. D.; MIGUEL, O. G.; AUER, C. G.; GRIGOLETTI JÚNIOR, A.; OLIVEIRA, A. B.; FERRONATO, M. L. Atividade antibacteriana e antifúngica de extratos etanólicos de Aster lanceolatus Willd., Asteraceae. Revista Brasileira de Farmacognosia, João Pessoa, v. 16, n. 1, p. 83-87, jan./mar. 2006.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - B |
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| 13. | | CUNICO, M. M.; CARVALHO, J. L. S.; ANDRADE, C. A.; MIGUEL, O. G.; MIGUEL, M. D.; AUER, C. G.; GRIGOLETTI JÚNIOR, A.; CÔCCO, L. C.; YAMAMOTO, C. I. Atividade antifúngica de extratos brutos de Ottonia martiana Miq., Piperaceae. Visão Acadêmica, Curitiba, v.7, n. 2, p. 53-60, jul./dez. 2006.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - A |
| Biblioteca(s): Embrapa Florestas. |
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| 14. | | CUNICO, M. M.; ANDRADE, C. A.; MIGUEL, O. G.; MIGUEL, M. D.; AUER, C. G.; GRIGOLETTI JÚNIOR, A.; CÔCCO, L. C.; YAMAMOTO, C. I. Atividade antifúngica in vivo do extrato bruto da Lobelia langeana Dusén, Campanelaceae, frente a um patógeno da erva-mate (Ilex paraguariensis St. Hil.). Visão Acadêmica, Curitiba, v.7, n. 2, p. 33-36, jul./dez. 2006.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Nacional - A |
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| 16. | | CUNICO, M. M.; CARVALHO, J. L. S.; SILVA, V. C.; MONTRUCCHIO, D. P.; KERBER, V. A.; GRIGOLETTI JÚNIOR, A.; AUER, C. G.; MIGUEL, M. D. Avaliação antifúngica de extratos obtidos de Ottonia martiana Miq. (Piperaceae) sobre três fitopatógenos. In: EUNIÃO ANUAL DO INSTITUTO BIOLÓGICO, 17., CONGRESSO DE INICIAÇÃO CIENTÍFICA EM CIÊNCIAS AGRÁRIAS, BIOLÓGICAS E AMBIENTAIS, 2., 2004, São paulo. Resumos expandidos. São Paulo: Instituto Biológico, 2004. 1 CD-ROM. 17ª RAIB.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Florestas. |
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| 17. | | CUNICO, M. M.; MIGUEL, O. G.; KERBER, V. S.; MONTRUCCHIO, D. P.; AUER, C. G.; GRIGOLETTI JÚNIOR, A. Avaliação da atividade antibacteriana de Ottonia martiana Miq., Piperaceae. Revista de Ciências Farmacêuticas, Araraquara, v. 24, n. 2, p. 141-145, 2003.| Biblioteca(s): Embrapa Florestas. |
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| Registros recuperados : 140 | |
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